Swienty DANA api MATIC Instruction Manual page 21

Take the big, black O-ring out.
The pump housing can be cleaned in a dish washer
(normal program) or by hand with detergent and
warm water.
Put the pump housing together again.
Carefully press on the fixed axis so that a gap appears
between the gear and the cover. Rinse here.
Tip: the O-ring can be lubricated with grease or the
filling substance for extra sealing.
Remember to check that the clutch teeth fit, otherwise
the pump housing cannot be put back on completely.
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